Chips/programers
Thread Starter
Advanced
Joined: Dec 2013
Posts: 57
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From: Kemah Texas
Chips/programers
New here I just got a 1996 auto that has the LT 4 conversion. I don't know anything about preformance chips/programers. Are they worth the 3-5 bills? If they are worth the money what are some good ones?
Intermediate
Joined: Jun 2013
Posts: 48
Likes: 3
From: Troutman NC
I had one burned by Brian Harris in NC, TBICHIPS or something like that. He's a good guy, knows his stuff. Made a big difference in my C-4
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
Your ECM has to be programmed in situ from a programmer or software from a laptop;
it doesn't have a removable chip
http://ls1tech.com/forums/lt1-lt4-mo...rogrammer.html
A search would have shown that most opinions on here are negative
http://forums.corvetteforum.com/c4-t...r-for-lt4.html
http://forums.corvetteforum.com/c4-t...od-or-bad.html
http://forums.corvetteforum.com/c4-t...or-an-lt4.html
http://forums.corvetteforum.com/c4-t...ammer-iii.html
http://ls1tech.com/forums/lt1-lt4-mo...rth-money.html
it doesn't have a removable chip
http://ls1tech.com/forums/lt1-lt4-mo...rogrammer.html
A search would have shown that most opinions on here are negative
http://forums.corvetteforum.com/c4-t...r-for-lt4.html
http://forums.corvetteforum.com/c4-t...od-or-bad.html
http://forums.corvetteforum.com/c4-t...or-an-lt4.html
http://forums.corvetteforum.com/c4-t...ammer-iii.html
http://ls1tech.com/forums/lt1-lt4-mo...rth-money.html
Drifting
Joined: May 2013
Posts: 1,736
Likes: 31
From: Reno Nevada
Unless you are tuning to compensate for engine component changes like cam, or compression changes it's not worth it. Simple tire height, gear, or fan temp changes can be done sending out the pcm to someone for about $150 to $200. Want to learn to tune?
http://moates.net/book-master-efi-tu...efi-p-266.html
http://moates.net/book-master-efi-tu...efi-p-266.html
Thread Starter
Advanced
Joined: Dec 2013
Posts: 57
Likes: 0
From: Kemah Texas
Unless you are tuning to compensate for engine component changes like cam, or compression changes it's not worth it. Simple tire height, gear, or fan temp changes can be done sending out the pcm to someone for about $150 to $200. Want to learn to tune?
http://moates.net/book-master-efi-tu...efi-p-266.html
http://moates.net/book-master-efi-tu...efi-p-266.html
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
If all of the LT4 pieces are in the motor, that should have been a 30HP gain from the LT1. Did you swap in a complete LT4?
You might want to think about headers and a good cat back exhaust to start. That should not really require a "tune" and will provide more HP. You might consider a gear ratio change too. Go with something like the 3.45 gears that came with an LT4/6-speed car. That lower ratio will give you better acceleration in the A4 1st gear as the 6-speed is a 2.64 and 1st in the A4 was 3.06 The A4 OD ratio is something like .70 and 5th gear in the 6-speed is .74 So the 3.54 shouldn't hurt gas mileage.
In any event, if you are looking at further mods like a cam, heads, or similar bolt-ons, do those first then work on a tune.
You might want to think about headers and a good cat back exhaust to start. That should not really require a "tune" and will provide more HP. You might consider a gear ratio change too. Go with something like the 3.45 gears that came with an LT4/6-speed car. That lower ratio will give you better acceleration in the A4 1st gear as the 6-speed is a 2.64 and 1st in the A4 was 3.06 The A4 OD ratio is something like .70 and 5th gear in the 6-speed is .74 So the 3.54 shouldn't hurt gas mileage.
In any event, if you are looking at further mods like a cam, heads, or similar bolt-ons, do those first then work on a tune.
Thread Starter
Advanced
Joined: Dec 2013
Posts: 57
Likes: 0
From: Kemah Texas
If all of the LT4 pieces are in the motor, that should have been a 30HP gain from the LT1. Did you swap in a complete LT4?
You might want to think about headers and a good cat back exhaust to start. That should not really require a "tune" and will provide more HP. You might consider a gear ratio change too. Go with something like the 3.45 gears that came with an LT4/6-speed car. That lower ratio will give you better acceleration in the A4 1st gear as the 6-speed is a 2.64 and 1st in the A4 was 3.06 The A4 OD ratio is something like .70 and 5th gear in the 6-speed is .74 So the 3.54 shouldn't hurt gas mileage.
In any event, if you are looking at further mods like a cam, heads, or similar bolt-ons, do those first then work on a tune.
You might want to think about headers and a good cat back exhaust to start. That should not really require a "tune" and will provide more HP. You might consider a gear ratio change too. Go with something like the 3.45 gears that came with an LT4/6-speed car. That lower ratio will give you better acceleration in the A4 1st gear as the 6-speed is a 2.64 and 1st in the A4 was 3.06 The A4 OD ratio is something like .70 and 5th gear in the 6-speed is .74 So the 3.54 shouldn't hurt gas mileage.
In any event, if you are looking at further mods like a cam, heads, or similar bolt-ons, do those first then work on a tune.
